Home / 13,293.36-18,342.93-7,628.34

Finding the Fourth Proportional to 13,293.36, 18,342.93 and 7,628.34

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Solution

The fourth proportional to 13,293.36, 18,342.93 and 7,628.34 is: 10,526.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.36 : 18,342.93 = 7,628.34 : x
  2. Step 2: Convert to fraction form
    13,293.36/18,342.93 = 7,628.34/x
  3. Step 3: Cross multiply
    13,293.36x = 18,342.93 × 7,628.34
  4. Step 4: Simplify right side
    13,293.36x = 139,926,106.64
  5. Step 5: Solve for x
    x = 139,926,106.64/13,293.36
  6. Step 6: Final answer
    x = 10,526.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.